2MHz astable (CB9102E)

This TTL circuit can be used as a shield. The frequency can be changed by changing the capacitors.

Diode Test with Oscilloscope (CB4160E)
The circuit shown enables dynamic diode testing with an oscilloscope. We found this configuration in a...
Missing Pulse Detector (CB13046E)
The circuit shown in the figure is quite interesting in control and alarm applications. This...
SCR Power Control 2 (CB4513E)
This different power control circuit with SCR was obtained from a 1967 magazine. The SCR can be...